We’ll be on the backside of a trough that will be retreating eastward on Friday, and high pressure will be off to our north sending a flow of dry continental air into Central Alabama. We’ll have a great supply of sunshine with winds out of the north at 2-7 MPH. The afternoon high will top out in the mid-70s after starting off rater chilly in the lower 50s at 8:00 AM.
Clouds will be slowly increasing throughout the day on Saturday as our pattern starts to flow out of the southwest. We’ll start to have more humid air move into the area as our flow comes in from the Gulf of Mexico. We’ll have partly to mostly cloudy skies and the afternoon high will top out in the mid-70s. We’ll stay dry throughout the on-track activities, but a few scattered showers may be possible by sunset. Odds for any rain before the end of the day is really low at 1-in-10. Winds will be out of the southeast at 2-9 MPH.
As of now, we are getting mixed signals from both of the long-range models, leaving the forecast for Sunday as a low-confidence forecast. The GFS is painting the heaviest storms affecting the track during the morning hours through the late afternoon, with a few lingering showers on the backside of the system throughout the remainder of the evening. The European model keeps the heavier precipitation out of the area until well after the event is over, but a few sprinkles or light showers are possible during the afternoon. The good news is that both models are keeping everything below severe limits at this point for the track, but this is prime severe weather season in Central Alabama, so we’ll keep an eye out on any developments. Skies will be cloudy when its not raining, and the afternoon high will be in the lower 70s. GFS rainfall amounts could top 1 inch before the end of the day, but if the European model is the right, amounts will be around 0.1 inches. I’ll go with 50/50 odds for rain for now, but timing and odds will be fine-tuned throughout the week when models come into better agreement and the high-resolution models come into range.
I'll be at the track representing my daytime job with AlabamaWx.com, but I'll be sporting my Racecast Weather ball cap. I'll be the only one there with one on... it's one of a kind. I'll have my Macbook in tow and may even be on Indycar Radio again this year. We'll see how it goes.